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EtherCAT Physical Layer and Transmission Technology

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EtherCAT Physical Layer and Transmission Technology

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Questions and Answers

Which technology does the physical layer of EtherCAT rely on?

Fast Ethernet transmission technology (correct)

10 Mbps Ethernet transmission technology

Gigabit Ethernet transmission technology

Ethernet over powerline technology

What is the name of the low-cost solution foreseen for modular devices in EtherCAT?

DeviceNet

PROFINET

EtherNet/IP

EBUS (correct)

Why is the use of switches not recommended in EtherCAT to ensure real-time behavior?

Switches are unnecessary in EtherCAT architecture

Switches introduce latency and can disrupt real-time behavior (correct)

Switches are not compatible with the physical layer technology

Switches impair the performance of EBUS

How many different types of physical layers does EtherCAT support?

Two: Ethernet and EBUS Signup and view all the answers

What does the master in EtherCAT view the whole EtherCAT segment as?

A single, large Ethernet device Signup and view all the answers

What type of twisted pair is used as the transmission medium for connecting slave devices in EtherCAT?

Cat 5 twisted pair Signup and view all the answers

Which interface is not supported by the Ethernet transceivers (PHYs) needed to interface ESCs to Ethernet in EtherCAT?

USB Signup and view all the answers

What is the primary purpose of EBUS in EtherCAT?

To interconnect modules in modular devices Signup and view all the answers

What encoding scheme does EBUS use for transmitting frames in EtherCAT?

Manchester (biphase L) Signup and view all the answers

What is the bit rate selected for EBUS to match the fast Ethernet specification in EtherCAT?

100 Mbit/s Signup and view all the answers